Java 正则表达式的使用

private static String pattern = "^([\\d.]+) (\\S+) (\\S+) \\[([\\w:/]+\\s[+\\-]\\d{4})\\] \"(.+?)\" (\\d{3}) (\\d+|-) \"([^\"]+)\" \"([^\"]+)\"";

//静态方法获取Pattern对象

private static Pattern p = Pattern.compile(pattern);

//line是待验证的字符串

Matcher matcher = p.matcher(line);

//匹配成功

if (matcher.matches()){

　　...

}